Draft-equalizer.



R. A. McCALL. DRAFT EQUALIZER. APPLICATION FILED SEPT. 26, 1913.

Patented Mar. 2, 1915.

THE NORRIS PETERS 80., PHOIDLITHQ, WASHINGTON, D. C.

DRAFT-EQUALIZER.

Specification of Letters Patent.

Patented Mar. 2, 1915.

Application filed September 26, 1913. Serial No. 792,038,.

To all whom it may concern:

Be it known that I,- Roenn'r A. MGGALL, a citizen of the United States, residing at Anson, in the county of Jones and State of Texas, have invented a new and useful Draft-Equalizer; andI do hereby declare the following to be'a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a new and useful improved draft equalizer.

' As an object of the'invention it is the aim to provide an improved equalizer adapted for use in connection wlth three draft ani mals, one pulling against two animals, and constructed in such wise that the single draft animal (which heretofore is connected to the long arm of the main equalizing beam and disposed a considerable distance on one side and fromthe tongue or pole) may be disposed considerably closer to the tongue or pole than heretofore, and at the same time have a resilient equalizing draft relative to the other two animals on the other side of the pole or tongue. In carrying out these objects, it is the aim to provide a main equalizing beam having a long and short arm, to the short arm two draft animals are connected, while to the long arm a single draft animal is so connected by means of right angularly disposed links connected to a yieldable lever and a cooperating bracket arm (which yieldable lever is pivoted on the long arm), so that not only a yieldable draft on the long arm is attained, but so that such draft is so shifted between the points of connections of said links with the yieldable lever and the bracket arm, that the draft of the single horse will equalize with that of the two horses.

In practical fields the details of construction may necessitate alterations, to which the patentee is entitled, provided the alterations fall within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings i-Figure 1 is a view in perspective of the improved draft equalizer constructed in accordance with the invention. Fig. 2 is a plan view showing parts of the equalizer in different positions. Fig. 3 is an enlarged detail view of. a portion of the equalizer. Fig. i is a sectional view on line 4-41 of Fig. 1.

' Referring more particularly tothe drawings 1 designates the main equalizing beam having a long arm 2 and short arm 8. This main equalizing beam is pivoted to the wagon tongue by the bolt 4:, which passes through the strap 5 and the tongue 6.

Connected to the short arm 3 of the main equalizing beam by means of thelink 6 is a supplemental equalizing beam 7 to each end of which swingle-trees 8 and 9 are connected by the links 10.

The end of the long arm 2 of the main equalizing beam is constructed with a reduced portion 12, there being shoulders 13. This reduced portion 12 is arranged in the bifurcations 14-of the angle end 15 of the spring arm 16, which is arranged at an acute angle to the long arm of the main equalizing beam. Swing to the angled end of the spring arm'engaging the shoulder 13, the spring arm will yield toward and from the long arm 2 of the main equalizing beam. A pin 17 passes through the bifurcated angled end of the spring arm and through the reduced portion-of the long arm 2 of the main equalizing beam. I

Itigidly fixed to the spring arm as at 18 is a bracket arm 19 extending partially rear- Ward and forwardly. Linked to the bracket arm as at 20 is a rod 21, which in turn is connected to a ring 23, to which the eye 24 of the member 25 is connected. This member 25 is constructed with an elongated loop 26 through which the long arm 2 of the main equalizing beam extends. The rear portion of the loop 26-engages aneye 27 of the member 27 This member 27 has an additional eye 27 which receives the reduced ends 28 of the spring arm, there being a nut 29 threaded on the reduced end 28 to hold the eye in place. Connected to the ring 28 by the link 30 is a swingle-tree 31. Referring to Fig. 2 of the drawing, and assuming that the spring arm or lever 16 is disposed in its operative position with the edges of the angled end 15 in contact with the shoulders 18 of the long arm of the main equalizing beam, so that the ring 23 and con nection 20 are disposed considerably farther .to the left, in other words, sufficiently, in order that the member or link 25 will assume a greater angle towar the left than is shown in Fig. 2, the draft of the single anianimal will bejattainedltrees connected to the short arm,

the long arm and lyingin the other animals connected to 7 tree, but'that a resilient draft is attained.

Copies of this patent may be obtained for mal (which is designed to be connected to the swingle'tree3l): will be shiftedfrom the ring 23 on an angle substantially midway between the connections 20 and-27,so-that the draft of thesingle animal will not only equalize with the draft of the other two ani mals, but that a resilient draft for the single The invention having been set forth, what is claimed as new and useful is 1-, In combination, a 1 main equalizing beam'having long'and short arms, a supplemental equalizing beam includingswingle a resiliently mounted lever pivoted to the extremity of rear thereof and provided with aibracket arm terminat ing forwardly of but offset from the extremity of the long arm, a'swingle tree, and connections between the swingle tree and the resilient lever and bracket arm, whereby the draft is not only shifted substantially midway between the points of connection of said connections with the. lever and the bracket arm'so that the draft of the single animal Will equalize with the draft of two thefirst swingle 12, In combination, a main equalizing beam havinglong and short arms, a supplefurcated end: pivotally connected having abutting shoulders to be mental equalizing beam connected to the short arm-and including a pair of swingle trees, a-- resilient lever having an angled bito the long arm and arranged at an acute angle to the long arm in the rear thereof, said long arm engaged by the angled end of said lever to insure resil iency, a bracket arm connected to the resilient lever at therear and terminating forwardly of but offset from the pivot of the resilient lever, a swingle tree, a link connecting said swingle tree and the resilient end portion ofsaid lever, and'a rod connecting the free end of the bracket arm and said swingle tree, said link and rod being so arranged, that the draft is shifted substantially midway between the 'point of connections between the link and the rod to the lever and the bracket arm so as to equalize with the draft on the first two swingle trees, and at the same time attain a resilient draft.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' ROBERT A. MoCALL. Witnesses r GUY R. HoLooMB,

E. MADDOX.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

